3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $b = array(); $a['b'] = 'something'; $a['common'] = 123; $a['a1'] = array( 'common' => &$a['common'], 'elt1' => 11, 'elt2' => 12 ); $a['a2'] = array( 'common' => &$a['common'], 'elt1' => 21, 'elt2' => 22 ); $as = serialize($a); $a2 = unserialize($as); var_dump($a2['common']); var_dump($a2['a1']['common']); var_dump($a2['a2']['common']); var_dump($as);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0070.01018.30
8.3.50.0120.00321.14
8.3.40.0070.00718.85
8.3.30.0140.00020.35
8.3.20.0040.00420.21
8.3.10.0040.00422.09
8.3.00.0050.00322.45
8.2.180.0090.00616.38
8.2.170.0120.00922.96
8.2.160.0090.00620.22
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0070.00726.16
8.2.120.0040.00419.77
8.2.110.0030.00622.13
8.2.100.0120.00019.16
8.2.90.0060.00319.13
8.2.80.0040.00419.34
8.2.70.0030.00517.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0000.00718.22
8.2.30.0000.00818.06
8.2.20.0000.00717.65
8.2.10.0080.00017.74
8.2.00.0080.00017.56
8.1.280.0030.01025.92
8.1.270.0080.00024.66
8.1.260.0020.00526.35
8.1.250.0050.00328.09
8.1.240.0030.00723.83
8.1.230.0040.00818.75
8.1.220.0050.00517.74
8.1.210.0000.00818.77
8.1.200.0000.01317.25
8.1.190.0060.00317.53
8.1.180.0030.00518.93
8.1.170.0050.00318.56
8.1.160.0030.00322.12
8.1.150.0060.00318.62
8.1.140.0050.00217.29
8.1.130.0040.00417.82
8.1.120.0070.00017.28
8.1.110.0030.00317.42
8.1.100.0040.00417.30
8.1.90.0030.00517.42
8.1.80.0030.00317.29
8.1.70.0030.00317.38
8.1.60.0040.00417.42
8.1.50.0000.00817.34
8.1.40.0030.00717.32
8.1.30.0040.00417.58
8.1.20.0080.00017.54
8.1.10.0050.00317.50
8.1.00.0050.00317.38
8.0.300.0000.00718.77
8.0.290.0000.00817.05
8.0.280.0040.00418.43
8.0.270.0000.00817.11
8.0.260.0050.00316.73
8.0.250.0030.00316.85
8.0.240.0000.00716.94
8.0.230.0030.00316.86
8.0.220.0000.00716.80
8.0.210.0000.00716.71
8.0.200.0040.00416.95
8.0.190.0050.00216.84
8.0.180.0050.00316.85
8.0.170.0020.00516.93
8.0.160.0070.00016.94
8.0.150.0070.00016.79
8.0.140.0000.00716.73
8.0.130.0000.00613.38
8.0.120.0030.00616.81
8.0.110.0000.00716.79
8.0.100.0000.00717.00
8.0.90.0040.00416.84
8.0.80.0090.00616.88
8.0.70.0070.00016.93
8.0.60.0050.00216.72
8.0.50.0000.00716.87
8.0.30.0130.00817.15
8.0.20.0130.01017.40
8.0.10.0030.00517.00
8.0.00.0080.01416.65
7.4.330.0050.00015.00
7.4.320.0040.00416.36
7.4.300.0050.00216.52
7.4.290.0030.00316.58
7.4.280.0000.00716.46
7.4.270.0040.00416.42
7.4.260.0000.00716.43
7.4.250.0060.00316.50
7.4.240.0040.00416.47
7.4.230.0000.00716.29
7.4.220.0070.01116.36
7.4.210.0070.00716.43
7.4.200.0000.00716.29
7.4.190.0080.00016.64
7.4.160.0110.00616.55
7.4.150.0120.00617.40
7.4.140.0100.00717.86
7.4.130.0090.00816.43
7.4.120.0120.00616.39
7.4.110.0100.00716.38
7.4.100.0150.00316.54
7.4.90.0030.01316.58
7.4.80.0090.00919.39
7.4.70.0160.00316.57
7.4.60.0030.01516.48
7.4.50.0040.00416.06
7.4.40.0040.01522.77
7.4.30.0060.01016.36
7.4.00.0070.01015.05
7.3.330.0060.00013.15
7.3.320.0000.00612.99
7.3.310.0000.00716.32
7.3.300.0040.00416.26
7.3.290.0100.01016.27
7.3.280.0060.00816.27
7.3.270.0130.00317.40
7.3.260.0120.00616.31
7.3.250.0100.00716.39
7.3.240.0170.00016.36
7.3.230.0160.00316.39
7.3.210.0100.00716.21
7.3.200.0130.00819.39
7.3.190.0090.01216.39
7.3.180.0090.00616.56
7.3.170.0150.00016.28
7.3.160.0130.00916.36
7.3.120.0000.01714.75
7.2.330.0070.01016.39
7.2.320.0060.01116.43
7.2.310.0120.00616.73
7.2.300.0060.00916.41
7.2.290.0120.01216.72
7.2.60.0140.00716.78
7.1.200.0030.00515.79
7.1.100.0060.00618.20
7.1.70.0000.00716.95
7.1.60.0070.01119.29
7.1.50.0030.00916.96
7.1.00.0070.03022.31
7.0.200.0180.00314.92
7.0.140.0000.07722.11
7.0.60.0070.06719.94
7.0.50.0100.07017.78
7.0.40.0070.09020.04
7.0.30.0300.06320.34
7.0.20.0270.07720.12
7.0.10.0430.06020.16
7.0.00.0200.07720.04
5.6.280.0000.07321.12
5.6.210.0130.07320.51
5.6.200.0130.03318.22
5.6.190.0070.04320.41
5.6.180.3230.03320.45
5.6.170.0230.05320.52
5.6.160.0070.07720.44
5.6.150.0030.04018.15
5.6.140.0100.06318.20
5.6.130.0070.08318.07
5.6.120.0000.06721.04
5.6.110.0130.05021.04
5.6.100.0100.09021.14
5.6.90.0070.08021.09
5.6.80.0070.05720.52
5.6.70.0270.07020.50
5.5.350.0130.08020.39
5.5.340.0030.07717.93
5.5.330.0100.03320.47
5.5.320.0070.06020.32
5.5.310.0200.03720.27
5.5.300.0130.07318.00
5.5.290.0030.08317.89
5.5.280.0100.03320.79
5.5.270.0070.04020.97
5.5.260.0070.08320.96
5.5.250.0030.08720.59
5.5.240.0000.06720.15
5.4.450.0130.04019.57
5.4.440.0170.06019.45
5.4.430.0170.04319.41
5.4.420.0230.03319.20
5.4.410.0270.07319.37
5.4.400.0200.05319.10
5.4.390.0230.07019.10
5.4.380.0200.04318.79
5.4.370.0200.07319.06
5.4.360.0200.07319.21
5.4.350.0130.04019.06
5.4.340.0130.06719.10
5.4.320.0230.06318.93
5.4.310.0230.06018.88
5.4.300.0270.06719.08
5.4.290.0230.06019.20
5.4.280.0200.04018.91
5.4.270.0170.05719.22
5.4.260.0270.05719.08
5.4.250.0270.07018.80
5.4.240.0230.07319.10
5.4.230.0230.05319.04
5.4.220.0200.04319.11
5.4.210.0230.07019.07
5.4.200.0200.07719.08
5.4.190.0130.06019.07
5.4.180.0270.07019.15
5.4.170.0270.06019.23
5.4.160.0270.06019.07
5.4.150.0130.04318.86
5.4.140.0230.06316.18
5.4.130.0230.04716.27
5.4.120.0200.05716.32
5.4.110.0230.07316.47
5.4.100.0230.07316.19
5.4.90.0200.03716.30
5.4.80.0200.06316.37
5.4.70.0300.05016.41
5.4.60.0400.04716.41
5.4.50.0270.05016.39
5.4.40.0200.05016.18
5.4.30.0230.06716.41
5.4.20.0170.07316.36
5.4.10.0230.07016.42
5.4.00.0200.05315.89
5.3.290.0270.06314.61
5.3.280.0170.05014.46
5.3.270.0300.04314.45
5.3.260.0200.07714.48
5.3.250.0270.03014.46
5.3.240.0130.05314.55
5.3.230.0170.07314.62
5.3.220.0200.07014.61
5.3.210.0270.06714.52
5.3.200.0230.04314.43
5.3.190.0130.04714.56
5.3.180.0200.06714.41
5.3.170.0230.05014.41
5.3.160.0170.07314.54
5.3.150.0170.04714.52
5.3.140.0200.06714.43
5.3.130.0230.06714.51
5.3.120.0370.03314.42
5.3.110.0230.07014.40
5.3.100.0270.06013.98
5.3.90.0200.04313.85
5.3.80.0230.04314.11
5.3.70.0130.04713.89
5.3.60.0230.07013.91
5.3.50.0200.05013.80
5.3.40.0200.04013.82
5.3.30.0170.07013.73
5.3.20.0200.07313.54
5.3.10.0300.06713.53
5.3.00.0170.07013.55
5.2.170.0170.05011.84
5.2.160.0030.05011.84
5.2.150.0230.02011.84
5.2.140.0270.04711.84
5.2.130.0170.03711.84
5.2.120.0200.03011.84
5.2.110.0230.05311.84
5.2.100.0130.03711.84
5.2.90.0200.05711.84
5.2.80.0230.05311.84
5.2.70.0230.03311.84
5.2.60.0170.03011.84
5.2.50.0130.03311.84
5.2.40.0130.04311.84
5.2.30.0130.06011.84
5.2.20.0270.02711.84
5.2.10.0170.05711.84
5.2.00.0130.05011.84
5.1.60.0100.03711.84
5.1.50.0130.02311.84
5.1.40.0130.02311.84
5.1.30.0200.03011.84
5.1.20.0130.05311.84
5.1.10.0170.04011.84
5.1.00.0100.03711.84
5.0.50.0100.04311.84
5.0.40.0030.03311.84
5.0.30.0070.05711.84
5.0.20.0070.02711.84
5.0.10.0070.03711.84
5.0.00.0100.04311.84
4.4.90.0030.01711.84
4.4.80.0070.01711.84
4.4.70.0070.02311.84
4.4.60.0030.03711.84
4.4.50.0130.01711.84
4.4.40.0070.04311.84
4.4.30.0000.02011.84
4.4.20.0100.03311.84
4.4.10.0100.01311.84
4.4.00.0100.05011.84
4.3.110.0130.03011.84
4.3.100.0070.03011.84
4.3.90.0000.03711.84
4.3.80.0030.04011.84
4.3.70.0070.02311.84
4.3.60.0070.02011.84
4.3.50.0100.03011.84
4.3.40.0070.04711.84
4.3.30.0030.02311.84
4.3.20.0070.01711.84
4.3.10.0030.02311.84
4.3.00.0030.02311.84

preferences:
41.92 ms | 401 KiB | 5 Q